[PATCH v1 1/2] perf test: Report failure for mmap events

[Leo Yan]

When fail to mmap events in task exit case, it misses to set 'err' to
-1; thus the testing will not report failure for it.

This patch sets 'err' to -1 when fails to mmap events, thus Perf tool
can report correct result.

Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
---
 tools/perf/tests/task-exit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index bce3a4cb4c89..ca0a6ca43b13 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -110,6 +110,7 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
 	if (evlist__mmap(evlist, 128) < 0) {
 		pr_debug("failed to mmap events: %d (%s)\n", errno,
 			 str_error_r(errno, sbuf, sizeof(sbuf)));
+		err = -1;
 		goto out_delete_evlist;
 	}
 
-- 
2.17.1